The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 150-600mm F5-6.3 Di VC USD G2 and the Sigma 100-400mm F5-6.3 OS for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Tamron 150-600mm F5-6.3 Di VC USD G2 is the longer of the two lenses at 258mm. The Sigma 100-400mm F5-6.3 OS with a length of 197mm, is 61mm shorter. Besides being longer, the Tamron 150-600mm F5-6.3 Di VC USD G2 also has a larger diameter of 106mm compared to the Sigma 100-400mm F5-6.3 OS's 86mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Sigma 100-400mm F5-6.3 OS weighs 1135g, 43% (875g) lighter than the Tamron 150-600mm F5-6.3 Di VC USD G2's weight of 2010g.
Filter Threads
The Tamron 150-600mm F5-6.3 Di VC USD G2 has a filter size of 95mm whereas the Sigma 100-400mm F5-6.3 OS has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 95mm filters that we recommend you to consider for the Tamron 150-600mm F5-6.3 Di VC USD G2:
And these are the 67mm filters that we recommend for the Sigma 100-400mm F5-6.3 OS:
Lens Mounts
The Tamron 150-600mm F5-6.3 Di VC USD G2 has the Sony Alpha lens mount whereas the Sigma 100-400mm F5-6.3 OS has the Leica L lens mount. Some of the latest released cameras that are compatible with these mounts are Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount and Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount.
Tamron 150-600mm F5-6.3 Di VC USD G2 is also available in the Nikon F (FX) and Canon EF mounts.
Sigma 100-400mm F5-6.3 OS is also available in Sony E and Fujifilm X mounts.
Focal Range
Tamron 150-600mm F5-6.3 Di VC USD G2 has a focal range of 150-600mm and
4.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
225 - 900mm.
On the other hand, the Sigma 100-400mm F5-6.3 OS has a focal range of 100-400mm and 4.0X zoom ratio .
